Portable water-heater



A. ZEBROWSKI.

PORTABLE WATER HEATER.

APPLICATION man 0012,1920.

Patented June 14, 1921.

4 SHEETS--SHEET A. ZEBROWSKI. PORTABLE WATER HEATER. APPLICATION FILED OCT. 2, 1920 m v7. Zerowski,

C'Mtowwq Patented June 14, 1921.

4 SHEETS-SHEET 2- ZEBROWSKI.

PORTABLE WATER HEATER. APPLICATION FILED OCT. 2, 1920.

@btovmug 4 SHEETS-SHEET a.

. @mwa/v Patented June 14, 1921.

M M m W 9 A. ZEBROWSKI. PORTABLE WATER HEATER APPLICATIION FILED OCT. 2, 1920 Patented June 14, 1921.

4'SHEETSSHEET 4.

UNITED STATES PATENT OFFICE.

ALEXANDER ZEBROWSKI, OF STAMFORD, CONNECTICUT.

PORTABLE WATER-HEATER.

To all whom it may concern:

Be it known-that I, ALEXANDER Znnnow- SKI, a citizen of the Republic of Poland, residing at Stamford, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in PortableWatenHeaters, of which the following is aspecification.

I y invention relates to heating apparatus and has particular reference .to portable devices adapted to be submerged in water or other fluid for the purpose of heating the same; and it consists of the novel features of construction, combinations and relative arrangements of parts which will be hereinafter more particularly set forth and then "specifically defined in the appended claims.

- An important purpose of my invention is to provide'a simple and comparatively inexpensive heater having fluid tight joints, adapting it to be submerged infwater or other fluid for raising the temperature of the same by heat generated from the burning of gas supplied to the interior of the heater from the ordinary house gas burners,

and, further, it is another important purpose ofmy device to provide a heater of such construction as will produce maximum .heat proportionate to the amount of gas used. My inventive idea is capable of'embodlment in a variety of mechanical structures,

one of which is shown in the accompanying drawings, but it is to be understood that the structure illustrated is merely intended to disclose the essential features of my invention in a preferred form and that its scope is as defined in the appended claims.

v the different views:

Figure 1 is a central vertical section line 1 -1 of Fig. 4;

In the drawings, wherein like characters of reference denote corresponding parts in through my improved heater taken on the Fig. 2, a view similar to Fig. 1 taken on the line 22 of Fig. 4;; I

Fig. 3, a view similar to Fig. 1 taken on i the hne 33 of Fig. 4.

.Fig. 4, a top plan; and

Fig. 5, a horizontal section on the line 55 of Fig. 1.

Referring to the drawings in detail, 10 designates a shell or casing in the form of.

Specification of Letters Patent. Patented J 119 14 1921 Lpplication filed October 2, 1920. Serial No. 414,344.

a hollow annulus which is of somewhat pecullar construction and forms the body por tion of my improved heater, being formed from any desired or suitable material, preferably by casting, to provide an outer wall 11 and'an inner wall 12, which latter is concentric with respect to said outer wall and is spaced therefrom as best shown in Figs. 3 and 5 of the drawings. At an intermediate point in its height this annulus is provided interiorly, that is, interiorly of the inner wall 12, with a horizontally arranged partition 13, separating the open upper and lower ends of the annulus proper, and this partition is centrally provided with a dome 1 1, having a central flanged opening 15 providing a means of communication through the partition. The inner wall 12 terminates at its lower end in said partition 13, while the outer wall 11 extends below the partition and is outwardly flared and provided with a down-turned marginal flange 16. At preferably diametrically opposite points said annulus has formed therein a plurality of elongated vertically arranged openings 17, which are closed with respect to the space between the walls 11 and 12, butprovide a means of communication or circulation between theinterior and exterior of the annulus or housing proper. These openings 17 extend fromthe upper end of the annulus to a point below the artition 13 and within a short distance 0 the out-turned portion of the outer wall 11, being closed with respect to the interior of the annulus proper, below the partition 13, by walls 18.

'A dish-like base in the form of a casting 19, including a flat marginal portion 20, is designed for association with the bottom of the annulus or housing 10, with the portion 20 received within the downturned marginal flange 16 and the said portion 20 and outwardly flared portion ofthe annulus secured together in any suitable manner, as by means of bolts or screws 21'. Preferably a gasket 22' of any suitable heat resisting material is interposed between the portion 20 and the adjacent portion of the annulus to prevent leakage of water into the annulus and the frusto-conical shape, and are then turned and tapered inwardly as at 24, into funnel shape and finally terminate in a T-head 25 disposed somewhat below the bottom of the casting. the ends of their shorter arms with the respective ends of the T-head 25 and their longer arms extend vertically upward past the annulus 10 a suitable distance where they open to the atmosphere and have secured thereto a ring 27, said tubes, for compactness of assembly and for purposes of strengthening the heater, having their longer or vertical arms received in semi-circular recesses cut in the marginal portions of the annulus and in the casting 19, as best shown in Figs. 1, 4 and 5 of the drawings. Legs 28 are secured to the casting 19 in any suitable manner whereby the heater is supported in an upright position.

- Fitting over the flange defining the opening 15 in the dome 14 is a tube 29 which extends from the lower end of and communicates witha combustion chamber 30 which latter is in the form of a hollow cylinder and has extending'from its upper end a tube 31 terminating substantially in the plane of the upper ends of the tubes26.

At points preferably midway between adjacent openings 17 the'upper wall of the annulus 10 has formed therein suitable openings to receive the lower ends of tubes 32 which extend upwardly parallel to the tubes 26 and tube 31 and like said first tubes open to the atmosphere and terminate in substantially the same plane, the ring 27 being provided with recesses to receive the tubes 32 to maintain them properly spaced and enhance the rigidity of the heater structure as an entirety. a

The upper ends of the openings 17 are bridged by pieces 33 and between a pair of these diametrically opposite bridge pieces and the ring 27 is arranged a pair of small spacing tubes 34, through which extend tie rods 35 which at their upper ends, are provided with eyes 36 and at their lower ends provided with nuts 37, whereby the ring may be rigidly secured to the annulus or housing. Engaged with the eyes 36 are the ends of a bail or handle 38 provided to facilitate lifting and handling of the heater.

A; small tube 39 opens at one end into the casting 19 and at its other end is passed through the marginal portions of said casting and housing, while extending downwardlv from the top of the heater and fitting over the end of this tube is a second tube 40 i provided with any suitable means whereby it with air to obtain the proper combustion mixture.

Resting upon the uppermost edge of the L-shaped tubes 26 are connected at of screws 44 which are passed through the convexed portion and threaded frusto-conical portion of the casting 19 and upon the side walls of said casting is a perforated plate 42, the central portion of which, where it overlies the portion 24, is of frusto-conical shape and closed at its top, while the portion between the uppermost edge of the portion 23 and the side walls of said casting, in cross section, is of upwardly directed convex shape, both the convexed andfrusto-conical portions of said plate being perforated or apertured as at 43. This plate is secured rigidly in place by adpair own into lugs 45 projecting from the inner face of the side walls of the casting. I

The inner wall 18 of the openings 17 is provided with an aperture 46 whereby the fuel flowing into the casting may be ignited, but when theheater is in operation this aperture is closed by a plug 47.

The construction of my improved heater having been described, its operation is 'be lieved to be apparent: When gas is ad- -mitted through the tubes 40 and 39 it flows into thebottom of the dish like casting 19 and is deflected upward by the walls of the frusto-conical portion 23, passing; through the apertured plate42 into the space between this plate and the partition 13. At the same time air flowing down through the tubes 26 and upward through the funnel like portion 24 passes through the apertures in the conical portion of the plate and mingles with the fuel to-produce a proper combustible mixture. The tubes 29 and 31 together with the combustion chamber 30 assure proper burning of the fuel. by acting in the nature of a flue, while the hollow annulus and the tubes 32 provide maximum radiating area for the heat to effect raising of the temperature of the water or other fluid within which the heater may be submerged. 7

I claim K r 1. A heater of the character described comprising an annular housing including inner and outer relatively spaced concentric walls, the space between said walls being closed at one end and open at the other, a casting closing the open end of said housing, a partition across the inner wall of said housing, means for supplying fuel and air to said base, combustion means connected with said partition, and radiating means connected with said housing. 7

2. A heater of the character described comprising a housing, a base, air tubes leading to said base, a combustionchamber and tube communicating with said housing, radiating tubes leading from said housing, means for maintaining said air supply and radiating tubes relatively spaced and rigid,

' all of said tubes'being open at their-upper ends nd terminating in a common plane above said housing, and means for supplybeing then converged downwardly into subing fuel to said heater. stantially funnel shape and terminating in 10 3. A heater of the character described a head, and tubes connected with said head comprising an annular housing, a base defor supplying air to be mixed with fuel en- 5 tachably connected with said housing, said tering the base.

base including side walls converged up- In testimony whereof I hereunto afiix my wardly into frusto-conical shape to provide signature.

a baflle for fuel entering the base, said walls ALEXANDER ZEBROWSKI. 

